Universal joint



W. H. THIEIVIER.-

UNIVERSAL 101m.

APPLICATION FILED JUNE 23, 1919.

Patented June 14, 192L LSSLOU.

UNITED STATES PATENT OFFICE.

WILLIAM VH. THIEMER, 0F lCLEVELAND, OHIO, ASSIGNOR TO TI-IE PETERS MACHINE AND MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

UNIVERSAL OINT.

Specification of I-.etters Patent.

Patented June 14, 1921.

Application :filed .Tune 23, 1919. Serial No. 306,080.

To all fw/tom t may concern:

Be it known that I, WILLIAM H. THIEMER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Universal Joints, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

vThis invention relates to universal joints, and more particularly to joints of the ringand-yoke type. The general object of the invention is to provide a joint of this character which is simple o f construction and which may be conveniently assembled and disassembled, and which is provided with means for efficiently lubricating the journals for the trunnions.

In the drawings forming part hereof, Figure l represents a sectional side elevation of a joint of this character, together with the cooperating portions of the shaft sections connected thereby; and. Fig. 2 is a view, partly in elevation and partly in section, of the joint proper.

Describing by referencecharacters thevarious parts illustrated herein, 1 .and 2 de-y note a pair of shaft sections having the hubsv 3 and 4 respectively, each hubcarrying a yoke 5, the arms whereof are provided each near its outer end with a bore 6. Mounted in each bore 6 is a stud or pin 7 carrying a trunnion. The outer end of each bore is provided with aflaring or frusto-conical recess 6a into which the outer end of the stud or pin 7 is adapted to be upset to form a type ofrivet connection between said stud4 or pin and its yoke arm. For this purpose,

the outer end of each stud or pin is provided with a frusto-conical recess 7a,A leaving a beveled marginal wall 7 which may be forced outwardly by suitable mechanism to provide an annular head 7c (see Fig. 2)

whereby the pin or stud 7 is secured in place i vfor lu within the connection or stud and the outer surface of its arm.

oove 6a, providing a flush-rivet tween theouter end of such 1n Each stud or pin is provided with a shoulder 8 adapted to bear against the inner surfacefof the arm 5a and with a trunnion 9 extending inwardly from said shoulder.

Coperatin with the trunnion 9 isa connectin mem er having a central chamber ricant and journals for said trunnions. This connecting member is of the ring type and is made of two symmetrical sections adapted to be connected to provile a complete connecting member. The ring, when assembled, comprises four outer sections 10 which are relatively between the journals, beinbgi. expanded at 11 to provide journals for the trunnions. The central portion of the complete ring is of the width or depth of the portions 11, to provide a large central well 12 for lubricant. Each of the sections is provided with four halfjournalbearings and with half of the central lubricant tions are united, as by means of bolts 13, a connecting member having complete journal bearin l formed. olts 13 are preferably so arranged as to intersect slightly the journal bores 14 and to extend through grooves 15a provided in the bushings l5 thereby to anchor said bushings in. place.

Intermediate a ypair of journals, the ring sections are jointly provided with a filling opening 16 said openin being provided with a removable plug 1 lLubricant from this central chamber will be supplied by centrifugal action to the interior of each bushing, as by means of a port 18 provided in the outer surface of each trunnion and within its bushing, the inner end of such port communieating with the chamber 12. The shoulder 8 is adapted to yabut firmly at one side against the outer end of the bushing and at its opposite side against the outer end 14a of the journal, thereby to prevent the leakage of lubricant at this point.

In assembling; the bushings will be applied to their respective trunnions, with the grooves 152L in proper position toreceive the bolts 13. The two sections of the ring will then be applied to opposite sides of the bushings and trunnions and will be connected by means of the bolts 13. Lubricant having been inserted into the chamber 12 will be distributed by centrifugal action through the ports 18 to the bearings provided between the inner surfaces of the bushings and the outer surfaces of the trunnions.

Having thus described my invention, what I claim is 1. In a universal joint, the combination of ,i

well, whereby, when the secs and a Lcomplete well will be extending into the chamber 12,

end of each pin being recessed and pressed outwardly to form a Hush rivet connection y member having journals 15 shoulder, a bushing rounding vand means for supplying with its arm, and a connecting member having journals adapted to receive said trunnions.

2. ln a universal joint, the combination of a pair of yokes each having arms provided each with a bore, the outer end of each bore being provided with a recess, a trunnion having a stud or pin mounted in each bore i and provided with an annular rim pressed plying lubricant from said connecting member to said journals.

4. In a universal joint, thecombination of a pair of yokesveach having arms provided each with a bore, a trunnion having a pin or stud mounted in each bore and a shoulder adapted to bear against the inner surface of such arm, a connecting member having journals for said trunnions, a bushing in each journal surrounding the trunnion` therein, lubricant from said connecting member to said journals.

5.` In a universal joint, the combination of 'apairjof yokes each having a pair of arms lprovided each with a bore', ing a a trunnion havpin or'stud mounted 1n each bore, a

of a pair the outer two-part connecting ring having a central chamber for lubricant and provided With journals extending kbutWardly from said chamber adapted to receive said trunnions, and means for supplying lubricant from said chamber to said journals.

6. ln a universal joint, the combination of yokes each having a pair of arms provided each With a bore, a trunnion having'a pin or stud mounted in each bore, a two-partv connecting ring having a central chamber for lubricant and journals for the reception of said trunnions, a bushing in each journal surrounding the trunnion therein and provided With a groove in the outer surface thereof, and means for connecting the two parts of said connecting member and adapted to extend through the grooves in said bushings. 7. In a universal joint, the combination of a pair of yokes each having a pair .of arms provided each- With a bore,-,a trunnionehavking a pin or stud mounted in each bore, a

two-part connecting ring having a central chamber for lubricant and journals for vsaid trunnions, a'bushing in each journal'surrounding the trunnion therein and provided with grooves onj opposite sides thereof eX- tending inwardly from its outer surface, bolts connecting the sections of said ring and adapted to extend through the grooves in said bushings, each trunnion being rovided With a port in thereof communicating at its inner end with the lubricant chamberI and adapted to conduct lubricant therefrom to the inner surface of its surrounding bushing.

In testimony whereof, I hereunto affixv my signature. f

`WiLLiAM ii. THIEMER.

the external sur ace 

